Versions/EX1-447892

Update Information
Hello all, just a quick patch on the Spaced Out Testing branch to make the Small Petroleum Engine actually fuel-able, along with a few other things.

Features and New Improvements

 * Added liquid port for filling the Small Petroleum Engine's internal fuel tank
 * Small Solid Oxidizer Tank 3 to 5 wide module bridging art pass
 * Removed integrated conduit ports on Large Solid/Liquid/Gas Cargo modules
 * Minor art changes to Small Petroleum Engine
 * Added missing sound for Small Petroleum Engine